PDF malware analysis — malicious · bb3ffcb5e379a6b5

MALICIOUS

PDF

5.9 KB

MD5: 59fb30c9491081ab293f9f6067223a86 SHA-1: e04d2237e2c11e044e529be6be8143289b5998bf SHA-256: bb3ffcb5e379a6b56d45f6d2fd4d73ce216b0589f73aed276645bfcb864afda7

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1559.001 Component Object Model T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The 'unescape()' call and U3D content suggest obfuscation and exploitation of a CVE-related vulnerability in Adobe Reader's 3D parser. The embedded JavaScript, specifically 'javascript_obj0001_000.js', is likely responsible for downloading and executing a second-stage payload, as suggested by the 'Suspicious extracted artifact' heuristic. The exact nature of the payload cannot be determined without further analysis of the script's content.

Heuristics 6

U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0001_000.js` `21340d8c1e64171a8c5e45d2343191220416148da282e7de4477484b7fa20c7a`	pdf-javascript-stream	PDF /JS object 1 at offset 0xF	3901 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s).
`javascript_obj0002_001.js` `ac9245d748e7972e25091c1d18299b92e3e2339ab7e73e59ebe47ccc40b8c943`	pdf-javascript-stream	PDF /JS object 2 at offset 0x110C	58 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.